VSK-S3-12U CUI Inc

Additional Resources: Product Page 3D Model PCB Footprint date 03/31/2014 page 1 of 5 SERIES: VSK-S3 DESCRIPTION: AC-DC POWER SUPPLY FEATURES up to 3 W continuous power compact board mount design universal input (85~264 Vac / 110~370 Vdc) single output from 3.3~24 V over voltage, over temperature, and short circuit protections UL/cUL safety approvals efficiency up to 78% output output output ripple efficiency MODEL 1 voltage current power and noise max max typ typ (Vdc) (A) (W) (mVp-p) (%) VSK-S3-3R3U 3.3 0.7 2.3 30 63 VSK-S3-5U 5 0.6 3 30 72 VSK-S3-9U 9 0.33 3 30 74 VSK-S3-12U 12 0.25 3 30 76 VSK-S3-15U 15 0.2 3 30 76 VSK-S3-24U 24 0.125 3 30 78 Notes: 1. Ripple and noise measured at 20 MHz bandwidth PART NUMBER KEY VSK-S3 - XXU Base Number Output Voltage cui.comAdditional Resources: Product Page 3D Model PCB Footprint CUI Inc SERIES: VSK-S3 DESCRIPTION: AC-DC POWER SUPPLY date 03/31/2014 page 2 of 5 INPUT parameter conditions/description min typ max units 85 264 Vac voltage 110 370 Vdc frequency 47 440 Hz at 110 Vac 65 mA current at 230 Vac 30 mA at 110 Vac 10 A inrush current at 230 Vac 20 A external input fuse slow blow, 250 V 0.5 A (recommended) OUTPUT parameter conditions/description min typ max units line regulation 0.5 % load regulation 10 ~ 100% 1 % temperature coefficient 0.02 %/C hold-up time at 230 Vac 50 ms 3.3 V model 3 % voltage accuracy all other models 2 % switching frequency 100 kHz PROTECTIONS parameter conditions/description min typ max units over voltage protection chip lock up short circuit protection auto recovery with no damage from a short on any output over temperature protection 150 C SAFETY & COMPLIANCE parameter conditions/description min typ max units isolation voltage primary to secondary (for 1 minute) 3,000 Vac safety approvals UL 60950-1 safety class class II EN 55022 (level A), IEC/EN 61000-4-2 (level 4, 8kV/15kV), IEC/EN 61000-4-3, IEC/EN 61000-4-4 EMI/EMC (level 3, 2kV), IEC/EN 61000-4-5 (level 3, 1kV/2kV) MTBF 25C 300,000 hrs RoHS 2011/65/EU ENVIRONMENTAL parameter conditions/description min typ max units operating temperature -25 70 C storage temperature -40 105 C case temperature 95 C operating humidity non-condensing 95 % cui.com